Question 530657
A rope is cut into three pieces: x, y, and z.
y = x+4
z = 3(x+4
.
substitute
.
x + (x+4) + 3(x+4) = 36
.
x + x + 4 + 3x + 12 = 36
.
5x + 16 = 36
.
5x = 20
.
x = 4
.
y = 4+4 = 8
.
z = 3(8) = 24
.
4 + 8 + 24 = 36
.
Correct.
.
Done.